ZF 4644.138.017 FILTER for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.138.017 FILTER is a critical hydraulic filtration component engineered specifically for the WG 180 and WG 200 series transmissions. Positioned within the transmission’s lubrication circuit, this genuine OEM part ensures that transmission fluid remains free of particulate contaminants, protecting internal valve bodies and clutch assemblies from premature wear. The SKU 4644.138.017 is a direct replacement for the factory-installed filter, guaranteeing precise fitment and consistent fluid flow. When paired with a properly sealed TRANSMISSION HOUSING, this filter maintains the hydraulic integrity required for heavy-duty industrial applications.

Symptoms of Failure

• Erratic gear engagement or slipping: A clogged 4644.138.017 filter restricts oil flow, causing delayed or harsh shifts under load.
• Overheating transmission fluid: Restricted filtration forces the system to work harder, leading to elevated operating temperatures and potential thermal damage.
• Visible metal debris in the oil pan: When the filter media breaks down, metallic particles circulate, accelerating wear on the HOUSING and valve block surfaces.
• Low hydraulic pressure warnings: A saturated filter creates backpressure, triggering diagnostic codes and reducing overall transmission efficiency.

Technical Specifications

Compatibility

This filter is designed for the ZF WG 180 and WG 200 series transmissions, commonly found in heavy-duty construction equipment, agricultural machinery, and industrial vehicles. It is a direct fit for models including WG 180, WG 200, and their sub-variants. Always verify compatibility with your specific transmission serial number. For complete assembly, ensure the TYPE PLATE is correctly affixed to the housing for identification, and use a GROOVED STUD to secure the filter cover during installation.

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